IT7968579A0 - PROCEDURE AND DEVICE FOR REMOVING ASH FROM FIBER SUSPENSIONS IN THE PURIFICATION OF RECOVERY PAPER - Google Patents

PROCEDURE AND DEVICE FOR REMOVING ASH FROM FIBER SUSPENSIONS IN THE PURIFICATION OF RECOVERY PAPER

Info

Publication number
IT7968579A0
IT7968579A0 IT7968579A IT6857979A IT7968579A0 IT 7968579 A0 IT7968579 A0 IT 7968579A0 IT 7968579 A IT7968579 A IT 7968579A IT 6857979 A IT6857979 A IT 6857979A IT 7968579 A0 IT7968579 A0 IT 7968579A0
Authority
IT
Italy
Prior art keywords
purification
procedure
removing ash
fiber suspensions
recovery paper
Prior art date
Application number
IT7968579A
Other languages
Italian (it)
Original Assignee
Voith Gmbh J M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Gmbh J M filed Critical Voith Gmbh J M
Publication of IT7968579A0 publication Critical patent/IT7968579A0/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/32—Defibrating by other means of waste paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the pulp
    • D21D5/023—Stationary screen-drums
    • D21D5/026—Stationary screen-drums with rotating cleaning foils
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Processing Of Solid Wastes (AREA)
IT7968579A 1978-08-18 1979-07-27 PROCEDURE AND DEVICE FOR REMOVING ASH FROM FIBER SUSPENSIONS IN THE PURIFICATION OF RECOVERY PAPER IT7968579A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2836186A DE2836186C2 (en) 1978-08-18 1978-08-18 Process and device for ash removal from pulp suspensions in waste paper processing

Publications (1)

Publication Number Publication Date
IT7968579A0 true IT7968579A0 (en) 1979-07-27

Family

ID=6047363

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7968579A IT7968579A0 (en) 1978-08-18 1979-07-27 PROCEDURE AND DEVICE FOR REMOVING ASH FROM FIBER SUSPENSIONS IN THE PURIFICATION OF RECOVERY PAPER

Country Status (8)

Country Link
JP (1) JPS5530497A (en)
DE (1) DE2836186C2 (en)
FI (1) FI792542A (en)
FR (1) FR2433609A1 (en)
GB (1) GB2030186A (en)
IT (1) IT7968579A0 (en)
NL (1) NL7906062A (en)
SE (1) SE7906776L (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS220858B1 (en) * 1978-12-06 1983-04-29 Marcel Lalak Method of treating the waste paper
DE2908660C2 (en) * 1979-03-06 1984-02-09 J.M. Voith Gmbh, 7920 Heidenheim Process and system for the recovery of a pulp suspension from mixed waste paper
ATE19272T1 (en) * 1981-06-19 1986-05-15 Black Clawson Co SCREENING DEVICE FOR PAPER STUFFS AND METHOD FOR TREATMENT OF PAPER STUFFS.
IT1155310B (en) * 1982-04-19 1987-01-28 Jean Marie Clement PROCESS FOR THE RECYCLING PROCESS OF PAPER PRINTED FROM MACERO
CH665859A5 (en) * 1984-12-19 1988-06-15 Escher Wyss Gmbh METHOD AND DEVICE FOR REMOVING IMPURITIES FROM WASTE PAPER.
DE4034054C1 (en) * 1990-10-26 1992-04-02 Feldmuehle Ag, 4000 Duesseldorf, De
AT412216B (en) 2003-01-24 2004-11-25 Andritz Ag Maschf METHOD AND DEVICE FOR VENTILATING SUSPENSIONS
JP4723230B2 (en) * 2004-12-06 2011-07-13 三菱電機株式会社 Shredder dust specific gravity sorting method and shredder dust specific gravity sorting device
AT501868B1 (en) 2005-06-13 2007-04-15 Andritz Ag Maschf METHOD FOR THE RECYCLING OF FILLERS AND PIGMENTS OF PAPER, PAPER OR CARTON MANUFACTURING
EP3260596B1 (en) * 2016-06-23 2018-10-31 Valmet Technologies Oy Deashing system and deashing method
CN110878484B (en) * 2019-12-16 2021-06-01 临朐玉龙造纸有限公司 Wet pulp sand removing system and method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR670419A (en) * 1928-09-22 1929-11-28 Process for mechanically wet sorting and dissolving, as well as for subsequent sorting of old paper, waste cardboard, milled wood, cellulose and other paper semi-products in a single work cycle
DE617684C (en) * 1931-11-06 1935-08-23 Hugo Rumpe Method and device for sifting, cleaning and opening up plant fiber waste, in particular for processing waste paper
DE1295344B (en) * 1964-06-12 1969-05-14 Voith Gmbh J M Sifter for fiber suspensions
JPS4519043Y1 (en) * 1967-05-31 1970-08-03
DE1761132A1 (en) * 1968-04-05 1971-04-15 Voith Gmbh J M Sifter for cleaning fiber suspensions, especially in the pulp, wood pulp and paper industries
JPS5932231B2 (en) * 1976-08-30 1984-08-07 日立金属株式会社 Ingot extraction device

Also Published As

Publication number Publication date
SE7906776L (en) 1980-02-19
FI792542A (en) 1980-02-19
DE2836186B1 (en) 1979-05-03
GB2030186A (en) 1980-04-02
JPS5530497A (en) 1980-03-04
DE2836186C2 (en) 1980-02-07
FR2433609A1 (en) 1980-03-14
NL7906062A (en) 1980-02-20

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